Hostname: page-component-848d4c4894-2xdlg Total loading time: 0 Render date: 2024-06-25T04:57:07.117Z Has data issue: false hasContentIssue false
  • English
  • Français

EFFECTS OF PARASITISM BY TOMICOBIA TIBIALIS ASHMEAD (HYMENOPTERA: PTEROMALIDAE) ON REPRODUCTIVE PARAMETERS OF FEMALE PINE ENGRAVERS, IPS PINI (SAY)

Published online by Cambridge University Press:  31 May 2012

Susan E. Senger  and
Bernard D. Roitberg
Susan E. Senger
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
Bernard D. Roitberg
Affiliation:
Centre for Pest Management, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
Get access Rights & Permissions [Opens in a new window]

Abstract

The effects of Tomicobia tibialis Ashmead on the reproductive potential of adult Ips pini (Say) females were examined by comparing reproductive indices of parasitized and healthy females maintained in groups of three with healthy males. Parasitized females produced 50% fewer offspring than healthy females, and these offspring were distributed differently in the maternal gallery. Maternal gallery length and larval survival were not significantly different between the two groups, but a statistical power analysis (1 − β) shows this result to be equivocal. The potential to use T. tibialis as a biocontrol agent against I. pini is discussed.

Résumé

Les effets de Tomicobia tibialis Ashmead sur le potentiel reproducteur de femelles adultes d’Ips pini (Say) ont été étudiés en comparant les variables reliées à la reproduction chez des femelles parasitées et des femelles saines gardées en groupes de trois avec des mâles sains. Les femelles parasitées produisaient 50% moins de rejetons que les femelle saines et leur progéniture était répartie différemment dans le tunnel maternel. La longueur du tunnel maternel et la survie des larves ne différaient pas significativement chez les deux groupes, mais un test statistique de la puissance (1 − β) a démontré que ces résultats étaient ambigus. La possibilité d’utiliser T. tibialis comme agent de contrôle d’I. pini est examinée.

[Traduit par la rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 124 , Issue 3 , June 1992 , pp. 509 - 513
Copyright
Copyright © Entomological Society of Canada 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bedard, W.D. 1965. The biology of Tomicobia tibialis (Hymenoptera: Pteromalidae) parasitizing Ips confusus (Coleoptera: Scolytidae) in California. Contrib. Boyce Thompson Inst. 23(4): 77–82.Google Scholar
Borden, J.H. 1967. Factors influencing the response of Ips confusus (Coleoptera: Scolytidae) to male attractant. Can. Ent. 117: 859–871.Google Scholar
Cohen, J. 1988. The t-test for means. pp. 19–43 in Statistical Power Analysis for the Biological Sciences, 2nd ed. Lawrence Erlbaum Associates, Publishers, Hove and London. 474 pp.Google Scholar
Dahlsten, D.L., and Whitmore, M.C.. 1989. Potential for biocontrol of Dendroctonus and Ips bark beetles: The case for and against the biocontrol of bark beetles. pp. 3–19 in Kulhavy, D.L., and Miller, N.C. (Eds.), Potential for Biological Control of Dendroctonus and Ips Bark Beetles. Stephen F. Austin State University, Centre for Applied Studies, School of Forestry, Nacagdoches, TX. 255 pp.Google Scholar
Furniss, M.M. 1968. Notes on the biology and effectiveness of Karpinskiella paratomicobia parasitizing adults of Dendroctonus pseudotsugae. Ann. ent. Soc. Am. 61(6): 1384–1389.CrossRefGoogle Scholar
Gerdin, S., and Hedquist, K.-J.. 1984. Perilitus areolaris sp.n. (Hymenoptera: Braconidae), an imago-parasitoid of the large pine weevil, Hylobius abietis (Linnaeus) and its reproductive behavior. Ent. Scand. 15: 363–369.Google Scholar
Livingston, R.L. 1979. The pine engraver, Ips pini (Say) in Idaho: Life history, habits and management recommendations. Idaho Department of Lands, Forest Insect and Disease Control. P.O. Box 670. Coeur d'Alene Idaho 83814. Report 79–3: 1–7.Google Scholar
Miller, D.R., and Borden, J.H.. 1985. Life history and biology of Ips latidens (LeConte) (Coleoptera: Scolytidae). Can. Ent. 117: 859–871.CrossRefGoogle Scholar
Miller, D.R., Borden, J.H., and Slessor, K.N.. 1989. Inter- and intrapopulation variation of the pheromone Ipsdienol produced by male pine engravers, Ips pini (Say) (Coleoptera: Scolytidae). J. Chem. Ecol. 15(1): 233–247.CrossRefGoogle ScholarPubMed
Rice, R.E. 1968. Observations on host selection by Tomicobia tibialis Ashmead (Hymenoptera: Pteromalidae). Contrib. Boyce Thompson Inst. 24: 53–56.Google Scholar
Shaw, S.R. 1988. Euphorine phylogeny: The evolution of diversity in host-utilization by parasitoid wasps (Hymenoptera: Braconidae). Ecol. Ent. 13: 323–335.CrossRefGoogle Scholar
Thomas, J.B. 1961. The life history of Ips pini (Say) (Coleoptera: Scolytidae). Can. Ent. 93: 384–390.CrossRefGoogle Scholar